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42 CFR 84.77

§ 84.77 Inhalation and exhalation valves; minimum requirements.

United States · 42 CFR — Public Health · Status: effective

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42 CFR 84.77, § 84.77 Inhalation and exhalation valves; minimum requirements, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/201694
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Full text

(a) Inhalation and exhalation valves shall be provided where necessary and protected against damage and distortion. (b) Exhalation valves shall be— (1) Protected against external influence; and (2) Designed and constructed to prevent inward leakage of contaminated air.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.